Leaning back in his office chair with his head tilted up, Zhou Quan closed his eyes to rest.
He quietly considered how he could use these photographs of Lau Kin-ming to his own advantage.
Unfortunately, that old fox Nai Kun had been far too cautious in life.
Although his opera club was in a building in a busy district, it offered excellent privacy and security.
Any stranger who wanted to enter had to be checked by three of his trusted bodyguards.
The surveillance operatives Zhou Quan had sent out had managed to photograph Lau Kin-ming visiting the opera club.
But he had no way of knowing what had happened inside.
As such, the photographs in Zhou Quan's possession were nowhere near enough to prove that Lau Kin-ming was the gunman who had killed Nai Kun.
In fact, not even anyone inside the opera club could possibly prove it.
Since Wong Chi Shing and Hon Sam's wife had joined forces to kill Nai Kun, they could not possibly have left such a glaring loose end.
Otherwise, Nai Wing-hau would not have taken four years after his father's death to discover who had masterminded it.
Most importantly, when Nai Wing-hau carried out his future purge of the entire Nai Family.
He had not spared even Hon Sam's wife.
Yet Nai Wing-hau had not obtained a single piece of information about Lau Kin-ming, the gunman who had actually carried out the operation.
That showed just how cleanly and neatly Lau Kin-ming had done the job, keeping himself entirely off Nai Wing-hau's radar.
With these photographs alone, Zhou Quan could do nothing to Lau Kin-ming either.
He could, of course, arrest Lau Kin-ming outright and break down his psychological defenses step by step.
That would establish that he was the mole Hon Sam had